Bathing device and method thereof

ABSTRACT

A bathing device for washing people&#39;s body has a cleaning head comprising a suction housing, a liquid injection assembly inside said suction housing, and a control valve assembly, together with associated accessories. The control valve assembly comprises a valve and an electrical switch, allowing an operator to close said control valve to start spraying cleaning fluid onto person&#39;s body and removing said fluid with vacuum, and to open said control valve in said control valve assembly to discontinue spraying cleaning fluid onto person&#39;s body and releasing vacuum in said suction housing to facilitate free move of said cleaning head. The bathing device can clean person&#39;s body like taking a bath or shower without spilling water to adjacent area and the need for the person taking off clothes, and further at any place of person&#39;s convenience or choice.

FIELD OF THE INVENTION

This invention relates generally to a bathing device, and morespecifically, this invention relates to a hand-held bathing device thatcan clean human's body like taking a bath or shower without spillingwater to adjacent area and the need for the person taking off clothes.

BACKGROUND OF THE INVENTION

Human's body can have sweat, grease and dead skin cell over the time.People usually need to wash their body with water and sometimes togetherwith soap to clean out the sweat, grease and dead skin cell, that istaking a bath or shower. Rinsing body with water with proper temperaturealso helps person to remove body heat or warm up body with propertemperature of the cleaning water. This process involves spilling lotsof used water to adjacent area. Therefore, person taking a bath orshower usually needs to take off clothes and stay in an area with propercontainment of spilled water, such as in a tub or in a closed showeringarea with water drainage. However, for people with moving constrain ordisability, such as elder people or patients, sometimes it is difficultto take off clothes and enter the tub or showering area by themselves oreven with the help of caregivers. Moreover, the whole bathing orshowering process is usually very slow for these people, therefore theycould catch cold if the temperature in the environment is not properlycontrolled. In addition, in circumstances where taking off clothes isinconvenient, such as person's privacy, taking a bath or shower becomesproblematic.

Currently in prior arts, there is no such bathing device to help peoplewashing their body without the requirement to take off their clothes andthe requirement to go to a water contained area.

OBJECTS AND SUMMARY OF THE INVENTION

The principal object of the invention is to provide a hand-held bathingdevice that can clean person's body like taking a bath or shower withoutspilling water to adjacent area and the need for the person taking offclothes.

Another object of the invention is to provide a hand-held bathing devicethat can clean person's body like taking a bath or shower at any placeof person's convenience or choice.

Another object of the invention is to provide a hand-held bathing devicethat can clean person's body like taking a bath or shower without theneed to slide or rub the cleaning head on person's skin that could causeharm to person's skin and with the cleaning head being moved freely onperson's body for bathing.

Another object of the invention is to provide a hand-held bathing devicethat can clean person's body like taking a bath or shower with cleanfluid at a proper temperature for the comfort of the person taking abath.

These objects are achieved in accordance with the invention by means ofa bathing device for washing people's body, comprising:

-   -   a cleaning head comprising a suction housing, a liquid injection        assembly inside said suction housing, and a control valve        assembly, wherein said control valve assembly controls spraying        cleaning fluid onto people's body and removing said fluid with        vacuum, and said control valve also controls discontinuing        spraying cleaning fluid onto people's body and releasing vacuum        in said suction housing to facilitate free move of said cleaning        head;    -   a clean fluid reservoir;    -   a fluid pump coupled between and in fluid communication with        said liquid injection assembly and said clean fluid reservoir        through flexible tubings;    -   a waste fluid separator and reservoir, comprising a liquid        storage chamber, an air/liquid separator, an inlet coupled to        and in air and fluid communication with said cleaning head, and        an outlet coupled to and in air communication with a vacuum        source;    -   a vacuum pump coupled to and in air communication with said        outlet of said waste fluid separator and reservoir.

In one embodiment of this invention, said suction housing is detachableon said cleaning head.

In another embodiment of this invention, said suction housing hasvarious sizes and shapes to fit specific area and curve shape of humanbody.

In a preferred embodiment of this invention, the contact edge of saidsuction housing is made of soft and elastic material to ensure softcontact and vacuum seal with human body.

In another embodiment of this invention, said conduit coupled betweencleaning head and waste fluid separator and reservoir is flexible andexpandable, allowing free move during bathing process.

In another embodiment of this invention, said tubing coupled betweensaid liquid pump and said liquid injection assembly is embedded insidesaid conduit coupled between said cleaning head and said waste fluidseparator and reservoir.

In another embodiment of this invention, said vacuum pump, said wastefluid separator and reservoir, said clean fluid reservoir, said liquidpump are supported on a movable base with castors.

In a preferred embodiment of this invention, said waste fluid separatorand reservoir and said clean fluid reservoir are detachable on saidmovable base with castors.

In another embodiment of this invention, said clean fluid reservoirfurther comprises a liquid storage chamber, a detachable cap withconnector and tubings in liquid communication with said liquid pump, anelectric heating element, and a temperature indicator.

In another embodiment of this invention, said bathing device furthercomprises a temperature control system to control the temperature of theclean fluid within a designed range with said electric heating elementand said temperature indicator.

In another embodiment of this invention, said liquid storage chamber ofsaid waste fluid separator and reservoir is detachable and is vacuumtight by a sealable cap.

In another embodiment of this invention, said waste fluid separator andreservoir further comprises a vacuum releasing valve.

In another embodiment of this invention, said bathing device furthercomprises electric power sources for said temperature control system,said electrical heating element, said vacuum pump and said liquid pump.

In another embodiment of this invention, said bathing device furthercomprises a liquid separator/filter coupled between the outlet of wastefluid separator and reservoir and the inlet of said vacuum pump tofurther remove liquid entering the inlet of said vacuum pump.

In another embodiment of this invention, said control valve assemblyfurther comprises a valve and an electrical switch, said valve closesair communication of said cleaning head with atmosphere and turns onsaid electrical switch simultaneously, and said valve opens aircommunication of said cleaning head with atmosphere and turns off saidelectrical switch simultaneously.

Before taking a bath with said bathing device of this invention, theoperator will need to ensure the temperature of the cleaning fluid iswithin a proper and designed temperature range.

During the process of taking a bath with said bathing device of thisinvention, the operator closes said control valve in said control valveassembly to start spraying cleaning fluid onto person's body andremoving said fluid with vacuum, and opens said control valve in saidcontrol valve assembly to discontinue spraying cleaning fluid ontoperson's body and releasing vacuum in said suction housing to facilitatefree move of said cleaning head.

Further objects, advantages, construction, and features of the presentinvention will become apparent from the following description and theappended claims, which is illustrated schematically in the accompanyingdrawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings illustrate various embodiments of theprinciples described herein and are a part of the specification. Theillustrated embodiments are merely examples and do not limit the scopeof the claims. The elements in figures are not necessarily to absoluteor relative scale. Further, the elements illustrated may have a varietyof different configurations.

The foregoing objects and novelty of the invention will be apparent fromthe following description and the accompanying drawings, wherein:

FIG. 1 is a schematic drawing of the bathing device illustrating theworking mechanism embodying the invention, drawn not to scale and actualconstruction of the device.

FIG. 2 is a schematic drawing of an exploded view, partly in medialsection, of a waste fluid separator and reservoir, drawn not to scaleand actual construction of the device.

FIG. 3 is a schematic drawing of an exploded view, partly in medialsection, of a clean fluid reservoir, drawn not to scale and actualconstruction of the device.

FIG. 4 is a schematic drawing of an exploded view, partly in medialsection, of a cleaning head, drawn not to scale and actual constructionof the device.

FIG. 5a and FIG. 5b are schematic drawings of a top view and side viewof the cap connecting the tubing from said liquid pump outlet to saidliquid injector nozzle and said suction housing, drawn not to scale andactual construction of the device.

FIG. 6a and FIG. 6b are schematic drawings of an operational method,partly in medial section, illustrating the operational mechanism of acontrol valve assembly with which the present invention may be employed,drawn not to scale and actual construction of the device.

FIG. 7 is a schematic drawing of the electrical circuit and controlsystem with which the present invention may be employed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Methods and systems that implement the embodiments of the variousfeatures of the invention will now be described with reference to thedrawings. The drawings and the associated descriptions are provided toillustrate embodiments of the invention and not to limit the scope ofthe invention. Reference in the specification to “one embodiment' or “anembodiment' is intended to indicate that a particular feature,structure, or characteristic described in connection with the embodimentis included in at least an embodiment of the invention. The appearancesof the phrase “in one embodiment” or “an embodiment” in various placesin the specification are not necessarily all referring to the sameembodiment. Throughout the drawings, reference numbers are re-used toindicate correspondence between referenced elements.

In the following description, for purposes of explanation, numerousspecific details are set forth in order to provide a thoroughunderstanding of the present systems and methods. It will be apparent,however, to one skilled in the art that the present apparatus, systemsand methods may be practiced without these specific details.

The term “comprising,” which is synonymous with “including,”“containing,” or “characterized by” is inclusive or open-ended and doesnot exclude additional, unrecited elements or method steps. “Comprising”is a term of art used in claim language which means that the named claimelements are essential, but other claim elements may be added and stillform a construct within the scope of the claim.

In brief, an illustrative form of the invention comprises an electricpower and control system 3, a vacuum pump 4, a waste fluid separator andreservoir 5, a clean fluid reservoir 6, a fluid pump 7, a cleaning head10, and associated filter, conduits, tubings, control valves, electriccircuits etc. in the working mechanism to be described herein. Saidcleaning head 10 comprises a suction housing 11, a liquid injectionassembly embedded inside said suction housing 11, a control valveassembly 15, and associated fittings, connectors, tubings, electriccircuits.

With electric power on, vacuum pump 4 creates a vacuum in the intakevacuum hose 41 and draws a vacuum in the chamber of waste fluidseparator and reservoir 5. The inlet line of waste fluid separator andreservoir 5 is in fluid and air communication with cleaning head 10through vacuum hose 42, joint T connector 9, and conduit 43. The vacuumin these conduits and connectors is the driving force for fluid suctionin the cleaning head 10. A liquid pump 7 couples between clean fluidreservoir 6 and liquid injection assembly inside said cleaning head 10.The liquid pump 7 draws temperature pre-set clean fluid from clean fluidreservoir 6 and pump the clean fluid to liquid injection assembly andspray out to targeted area for cleaning through injector nozzle 12.

As compared to cleaning of normal surface such as floor, carpet, etc.using steam/vacuum cleaning device, taking a bath on people's body usingthe bathing device of this invention is different in that the cleaninghead should not slide on human body skin as does on normal surface forcleaning. This is because human body skin is not as smooth and flat asnormal surface like floor and carpet. More importantly, since certainpeople's skin is tender and sensitive, rubbing and sliding on people'sskin during cleaning could hurt these people. For this reason, theoperator of the bathing device of this invention uses the control valveassembly 15 on the cleaning head 10 to clean certain area of people'sbody section by section with no sliding and rubbing movement of thecleaning head 10. As will be described in detail later, when theoperator closes the control valve 15, the device will turn on fluidinjection and vacuum suction. In this mode, the clean fluid is sprayedon people's skin and the fluid is simultaneous removed by vacuumsuction. When the operator opens the control valve 15, the device willturn off fluid injection and allow air to enter the suction housing 11.The air entering the suction housing 11 will release the vacuum insidethe suction housing 11. When there is low vacuum in the suction housing11, thereby low suction force with suction housing 11 open to air, theoperator is able to move the cleaning head 10 to a different positionwithout the need to sliding through the skin surface.

Referring to the schematic drawing in FIG. 1 for the bathing deviceconstruction, the bathing device of the present invention comprises asupportive base 2 supported by swiveled castors 21. Vacuum pump 4,liquid pump 7, and associated electric power and control system 3 aremounted and supported on the base 2. The specific type of vacuum pump 4and liquid pump 7 employed are not material to this invention, and sinceseveral well-known types are suitable for the purpose, the detailsthereof are not illustrated or described herein. Said waste fluidseparator and reservoir 5 and clean fluid reservoir 6 are supported onbase 2. Both waste fluid separator and reservoir 5 and clean fluidreservoir 6 are detachable from base 2 to allow cleaning of the vesseland removal of the fluid insider the vessel. The cleaning head 10 isflexible and expandable through a conduit 43 for bathing operation.

The inlet or low pressure side of the vacuum pump 4 connects to theoutlet of a liquid separator/filter 8 and the inlet of the liquidseparator/filter 8 connects the outlet of said waste fluid separator andreservoir 5 through a flexible vacuum hose 41. The inlet of said wastefluid separator and reservoir 5 connects to one side of a joint Tconnector 9 through a flexible vacuum hose 42. Another side of the jointT connector 9 connects to the inlet of cleaning head 10 through aconduit 43. Yet another side of the joint T connector 9 is sealed with acap 47, wherein the cap 47 has a union connector 48 on it. One side ofthe union connector 48 connects to the outlet of the fluid pump 7through a flexible tubing 45, and the other side of the union connectsto the inlet of the liquid injector assembly inside cleaning head 10through a flexible tubing 44. The inlet of said liquid pump connects tothe outlet of clean fluid reservoir 7 through a flexible tubing 46.

Referring to the schematic drawing in FIG. 2 for detailed constructionof waste fluid separator and reservoir 5, the waste fluid separator andreservoir 5 comprises a waste fluid storage chamber 51 and a cap 53. Thecap 53 is capped and sealed onto the chamber 51 by a pair of clamplatches 52. The cap is sealed by an O-ring 54. The O-ring can be made ofelastic material, such as Viton®, Nitrile (Buna-N), Neoprene, Silicone,Ethylene Propylene Rubber (EPR), Polyurethane, etc. The cap 53 comprisesan inlet union 59, an outlet union 58, and a pressure control valveunion 55. The pressure control valve union 55 connects to a valve 56. Anair/liquid separator 57 connects to the outlet union 58 from inside ofthe chamber 51. The air/liquid separator 57 is able to block most of thewaste fluid inside the chamber 51 from entering the outlet vacuum hose41. The other side of the outlet union 58 connects to vacuum hose 41(Referring to FIG. 1). Through vacuum hose 41, vacuum pump 4 pulls avacuum inside chamber 51. The inlet union 59 connects to joint Tconnector 9 through a vacuum hose 42 (Referring to FIG. 1). A tubing 50connects to inlet union 59 from inside of the chamber 51. The tubing 50extends at a certain distance inside the chamber 51. The vacuum pump 4creates a vacuum and pulls a vacuum in chamber 51 through vacuum hose41, and in turn the vacuum in chamber 51 pulls a vacuum in suctionhousing 11 through vacuum hose 42, joint T connector 9, and conduit 43.The air and liquid mixture can be sucked into the chamber 51, whereinthe liquid will be separated in the chamber 51 and air will be pulledout through vacuum hose 41 to vacuum pump 4.

Referring to the schematic drawing in FIG. 3 for detailed constructionof clean fluid reservoir 6, the clean fluid reservoir 6 comprises aclean fluid storage chamber 61, a cap 63, an electric heating element65, a temperature indicator 66, and an air vent aperture 69. The cap 63is capped and sealed onto the chamber 61 by a pair of clamp latches 62.The cap is sealed by an O-ring 64. The O-ring can be made of elasticmaterial, such as Viton®, Nitrile (Buna-N), Neoprene, Silicone, EthylenePropylene Rubber (EPR), Polyurethane, etc. A fitting union 67 is on thecap 63. A tubing 68 connects to one side of union 67 from inside of thechamber 61. The tubing 68 extends to near the bottom of the chamber 61.The other side of union 67 connects to the inlet of liquid pump 7through a flexible tubing 46 (Referring to FIG. 1). The temperatureindicator 66 and electric heating element 65 works together with atemperature control system to regulate the clean fluid within a desiredtemperature range set by the operator. The detailed working logics willbe discussed in details in the electronic system (Referring to FIG. 7).When the clean fluid reaches the desired temperature range, the operatorcan turn on fluid pump 7 to draw clean fluid from chamber 61 and pump toliquid injector assembly in the cleaning head 10. If the fluidtemperature is outside the desired temperature range, the temperaturecontrol system will shut down the power to the fluid pump 7 and preventthe fluid pump 7 from pumping fluid to cleaning head 10.

Referring to the schematic drawing in FIG. 4 for detailed constructionof cleaning head 10, the cleaning head 10 comprises a suction housing11, a fluid injector nozzle 12, a union plug 13, a union fitting 14, anunion elbow 16, and a control valve assembly 15 attached on said unionelbow 16. The fluid injection assembly comprises the fluid injectornozzle 12, union plug 13, union fitting 14, tubing 44, union 48, and cap47. The control valve assembly 15 comprises a plug 151, an expansionspring 152, an electric circuit switch 154. The plug 151 is sealed tosaid union elbow 16 by an O-ring 153. The expansion spring 152 providesthe force to make a seal of the plug 151 on union elbow 16. The O-ringcan be made of elastic material, such as Viton®, Nitrile (Buna-N),Neoprene, Silicone, Ethylene Propylene Rubber (EPR), Polyurethane, etc.One side of the elbow 16 connects to joint T connector 9 through conduit43. The other side of the elbow 16 connects to suction housing 11. Thesuction housing 11 is detachable on the connection with the elbow 16.There can be various sizes and shapes of suction housing 11 to suit forcleaning of appropriate position of person's body. The edge 17 ofsuction housing 11 is made of soft and flexible materials, such assilicone, fabrics, etc. The union plug 13 is plugged into the elbow 16on the same connection side of the suction housing 11 with the unionfitting 14. One side of the union fitting 14 connects to the outlet fromfluid pump through a flexible tubing 44 (Referring to FIG. 1). The otherside of the union fitting 14 connects to fluid injector nozzle 12.

As illustrated in FIG. 5a and FIG. 5b , the union plug 13 anchors theunion fitting 14 and thereon liquid injector nozzle 12 with supportedring 132, and supported ring 132 is further anchored by supporting arms133 that are supported on the rim 131 of plug 13. In this structure, theopen area in union plug 13 still allows air and fluid communicationbetween suction housing 11 and elbow 16 and thereon.

FIG. 6a and FIG. 6b illustrate the working mechanism of the controlvalve assembly 15 and bathing devices operation thereon. When thebathing device is ready for operation with electric power turned on,vacuum pump in operation, clean fluid at designed temperature range, theoperator can release the control valve 15, and expansion spring 152 willexpand and push plug 151 up and cause the circuit switch 154 to closeand this will start liquid pump 7 to draw clean fluid from clean fluidreservoir 6 and spray out through injector nozzle 12 onto person's body.In the meantime, with control valve 15 closed, the vacuum from conduit43 will start to pull both air and fluid inside suction housing 11 intowaste fluid separator and reservoir 5. When cleaning of the area of thebody is finished, operator can push control valve 15 to cause thecircuit switch 154 to open and this will turn off the liquid pump 7. Inthe meantime, with control valve 15 open, the air will leak into suctionhousing 11 and this will decrease the vacuum inside the suction housing11. With less vacuum inside the suction housing 11, operator can easilylift the cleaning head 10 and move to another area for cleaning.

Referring to FIG. 7a and FIG. 7b for electric system for the bathingdevice, the bathing device comprises an electric power source 31, vacuumpump 4, electric heating element 65, and temperature indicator 66 andtemperature control system 32. The bathing device also comprises abattery power source 34 for liquid pump 7. The electric power source 31provides electric power to temperature control system 32, electricheating element 65, and vacuum pump 7. The battery power source 34provides electric power to liquid pump 7. The temperature indicator 66reads clean fluid temperature and send signal to temperature controlsystem 32. When the temperature indicator reading is within the designedtemperature range, the indicator light 33 on temperature control system32 turns into a specific color, for example, green color, indicating theclean fluid temperature is ready. In the meantime, the temperaturecontrol system 32 turns on power to vacuum pump 4. If the temperatureindicator reading is lower than the designed temperature range, theindicator light 33 on temperature control system 32 turns into anotherspecific color, for example, yellow color, and temperature controlsystem 32 turns on power to the electric heating element 65 to heat upthe clean fluid in the chamber 61. When the clean fluid in the chamber61 reaches the designed temperature range, the temperature controlsystem 32 turns off power to the electric heating element 65. If thetemperature indicator reading is higher than the designed temperaturerange, the indicator light 33 on temperature control system 32 turnsinto another specific color, for example, red color, this signal warnsthe operator that clean fluid temperature is too high. When clean fluidtemperature is not ready, the temperature control system turns off powerto fluid pump 7.

The operator can set a desired clean fluid temperature on temperaturecontrol system 32, the temperature control system 32 will control theelectric heating element 65 to heat up the clean fluid to the designedtemperature range, usually within 1-2 C of the set temperature. When theclean fluid temperature reaches the designed temperature range, theclean fluid temperature indicator light will be on a ready color, forexample, green color. When the indicator light is on a ready color,temperature control system 32 will turn on electric power to vacuum pump4 and turn on battery power to liquid pump 7. The operator can then usethe control valve assembly 15 to control the bathing device and taking abath. When the clean fluid level is below the temperature indicator, thetemperature indicator will usually change to room temperature andusually is different from the set desired temperature, and thetemperature indicator 66 will send a signal to the temperature controlsystem 32, and the temperature control system 32 will turn off theelectric power to vacuum pump and liquid pump. And the indicator lightwill also remind operator to add more clean fluid if further bathing isneeded.

In another alternative operation method, the operator can choose to usemanual method to control the power to vacuum pump 4 and liquid pump 7.Further the operator can choose to control the clean fluid temperaturemanually to a designed temperature range without the use of temperaturecontrol system and electric heating element.

There has thus been outlined, rather broadly, the more importantfeatures of the invention in order that the detailed description thereofthat follows may be better understood, and in order that the presentcontribution to the art may be better appreciated. There are additionalfeatures of the invention that will be described hereinafter and whichwill form the subject matter of the claims appended hereto. In thisrespect, before explaining at least one embodiment of the invention indetail, it is to be understood that the invention is not limited in itsapplication to the details of construction and to the arrangements ofthe components set forth in the following description or illustrated inthe drawings. The invention is capable of other embodiments and of beingpracticed and carried out in various ways. Also, it is to be understoodthat the phraseology and terminology employed herein are for the purposeof description and should not be regarded as limiting.

As such, those skilled in the art will appreciate that the conception,upon which this disclosure is based, may readily be utilized as a basisfor the designing of other structures, methods and systems for carryingout the several purposes of the present invention. It is important,therefore, that the claims be regarded as including such equivalentconstructions insofar as they do not depart from the spirit and scope ofthe present invention.

1. A bathing device for washing people's body, comprising: a cleaninghead comprising a suction housing, a liquid injection assembly insidesaid suction housing, and a control valve assembly, wherein said controlvalve assembly controls spraying cleaning fluid onto people's body andremoving said fluid with vacuum, and said control valve also controlsdiscontinuing spraying cleaning fluid onto people's body and releasingvacuum in said suction housing to facilitate free move of said cleaninghead; a clean fluid reservoir; a fluid pump coupled between and in fluidcommunication with said liquid injection assembly and said clean fluidreservoir through flexible tubings; a waste fluid separator andreservoir, comprising a liquid storage chamber, an air/liquid separator,an inlet coupled to and in air and fluid communication with saidcleaning head, and an outlet coupled to and in air communication with avacuum source; a vacuum pump coupled to and in air communication withsaid outlet of said waste fluid separator and reservoir.
 2. The deviceas claimed in claim 1, wherein said suction housing is detachable onsaid cleaning head.
 3. The device as claimed in claim 1, wherein saidsuction housing has various sizes and shapes to fit specific area andcurve shape of human body.
 4. The device as claimed in claim 1, whereinthe contact edge of said suction housing is made of soft and elasticmaterial to ensure soft contact and vacuum seal with human body.
 5. Thedevice as claimed in claim 1, wherein said conduit coupled betweencleaning head and waste fluid separator and reservoir is flexible andexpandable, allowing free move during bathing process.
 6. The device asclaimed in claim 1, wherein said tubing coupled between said liquid pumpand said liquid injection assembly is embedded inside said conduitcoupled between said cleaning head and said waste fluid separator andreservoir.
 7. The device as claimed in claim 1, wherein said vacuumpump, said waste fluid separator and reservoir, said clean fluidreservoir, said liquid pump are supported on a movable base withcastors.
 8. The device as claimed in claim 7, wherein said waste fluidseparator and reservoir and said clean fluid reservoir are detachable onsaid movable base with castors.
 9. The device as claimed in claim 1,wherein said clean fluid reservoir further comprises a liquid storagechamber, a detachable cap with connector and tubings in liquidcommunication with said liquid pump, an electric heating element, and atemperature indicator.
 10. The device as claimed in claim 1, whereinsaid bathing device further comprises a temperature control system tocontrol the temperature of the clean fluid within a designed range withsaid electric heating element and said temperature indicator.
 11. Thedevice as claimed in claim 1, wherein said liquid storage chamber ofsaid waste fluid separator and reservoir is detachable and is vacuumtight by a sealable cap.
 12. The device as claimed in claim 1, whereinsaid waste fluid separator and reservoir further comprises a vacuumreleasing valve.
 13. The device as claimed in claim 1, and furthercomprising electric power sources for said temperature control system,said electrical heating element, said vacuum pump and said liquid pump.14. The device as claimed in claim 1, and further comprising a liquidseparator/filter coupled between the outlet of waste fluid separator andreservoir and the inlet of said vacuum pump to further remove liquidentering the inlet of said vacuum pump.
 15. The device as claimed inclaim 1, wherein said control valve assembly further comprises a valveand an electrical switch, said valve closes air communication of saidcleaning head with atmosphere and turns on said electrical switchsimultaneously, and said valve opens air communication of said cleaninghead with atmosphere and turns off said electrical switchsimultaneously.
 16. A method of taking a bath using a bathing device forwashing people's body, comprising: a cleaning head comprising a suctionhousing, a liquid injection assembly inside said suction housing, and acontrol valve assembly, wherein said control valve assembly controlsspraying cleaning fluid onto people's body and removing said fluid withvacuum, and said control valve also controls discontinuing sprayingcleaning fluid onto people's body and releasing vacuum in said suctionhousing to facilitate free move of said cleaning head; a clean fluidreservoir; a fluid pump coupled between and in fluid communication withsaid liquid injection assembly and said clean fluid reservoir throughflexible tubings; a waste fluid separator and reservoir, comprising aliquid storage chamber, an air/liquid separator, an inlet coupled to andin air and fluid communication with said cleaning head, and an outletcoupled to and in air communication with a vacuum source; a vacuum pumpcoupled to and in air communication with said outlet of said waste fluidseparator and reservoir, wherein an operator closes said control valvein said control valve assembly to start spraying cleaning fluid ontoperson's body and removing said fluid with vacuum, and opens saidcontrol valve in said control valve assembly to discontinue sprayingcleaning fluid onto person's body and releasing vacuum in said suctionhousing to facilitate free move of said cleaning head.